Missing tags in Zotero

We use Zotero with our online library catalog and we noticed that some fields and subfields aren't imported into Zotero (we use the standard MARC21).

When we import records with subjects (tags) into Zotero, we noticed that several subjects are missing. Zotero did not import all the subjects.

We found the list of tags imported in Zotero but this list isn't complete.
In the MARC format, there are a lot of other fields "6XX" and subfields that should be imported into Zotero too.

All the subject fields and subfields in the MARC standard can be found at:
http://www.loc.gov/marc/bibliographic/bd6xx.html

Our request:
Could the developpers of Zotero add all the subject fields and subfields of the standard MARC21 into the configuration of Zotero so that they can be imported?

This is an old discussion that has not been active in a long time. Instead of commenting here, you should start a new discussion. If you think the content of this discussion is still relevant, you can link to it from your new discussion.